var currphoto=1; //current photo

var numPhotos=13; //number of photos

var photoDesc = new Array (numPhotos); //create array

//populate array
photoDesc[0] = "View near vestry - Viaduct";
photoDesc[1] = "Vestry from the front";
photoDesc[2] = "The Kitchen - Photo 1";
photoDesc[3] = "The kitchen - Photo 2";
photoDesc[4] = "The kitchen - Photo 3";
photoDesc[5] = "Master Bedroom";
photoDesc[6] = "Triple Bedroom";
photoDesc[7] = "Twin Bedroom";
photoDesc[8] = "Lounge Photo 1";
photoDesc[9] = "Lounge Photo 2";
photoDesc[10] = "Lounge Photo 3";
photoDesc[11] = "Master Bathroom";
photoDesc[12] = "Front Entrance";


function PrintPhotoDesc(i)//print the description
{
document.getElementById("phototext").innerHTML=photoDesc[i-1];
}

function bkbtnin(btn_id)//mouse over back button
{
btn_id.src="images/backbtnh.jpg";
}

function bkbtnout(btn_id)//mouse out of back button
{
btn_id.src="images/backbtn.jpg";
}

function fwbtnin(btn_id)//mouse over fwd button
{
btn_id.src="images/fwdbtnh.jpg";
}

function fwbtnout(btn_id)//mouse out of fwd button
{
btn_id.src="images/fwdbtn.jpg";
}

function go_back()//load previous phto + desc
{
if (currphoto > 1) 
	currphoto --;

else 
	currphoto = numPhotos;

fname="gallery/big"+ currphoto +".jpg";
ihandle=document.getElementById("bigphoto");
ihandle.src=fname;
PrintPhotoDesc(currphoto);//call func to print desc

}

function go_fwd()//load next phto + desc
{

if (currphoto < numPhotos) 
	currphoto++;

else 
	currphoto = 1;

fname="gallery/big"+ currphoto +".jpg";
ihandle=document.getElementById("bigphoto");
ihandle.src=fname;
PrintPhotoDesc(currphoto);//call func to print desc

}